CN220534017U

CN220534017U - Vent valve shutoff frock

Info

Publication number: CN220534017U
Application number: CN202322154303.6U
Authority: CN
Inventors: 侯英超
Original assignee: Dalian Newstar Tool Manufacture Co ltd
Current assignee: Dalian Newstar Tool Manufacture Co ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-02-27
Anticipated expiration: 2033-08-11

Abstract

The utility model discloses a vent valve plugging tool, which is characterized in that: the plugging tool comprises a sleeve, wherein a mandrel is movably connected in the sleeve, one end of the mandrel is provided with a flat hook-shaped end head positioned outside the sleeve, the other end of the mandrel is rotationally connected with an eccentric driving block through a rotating shaft, a handle is arranged on the eccentric driving block, the rotating shaft is connected to the eccentric position of the eccentric driving block, a sealing groove is formed in the end face of the sleeve, which is close to one end of the flat hook-shaped end head, a sealing ring is arranged in the sealing groove, the other end of the sleeve is in threaded connection with an adjusting sleeve, the eccentric driving block is in contact with the end face of the adjusting sleeve, a through hole is formed in the center of the adjusting sleeve, the mandrel is movably connected in the through hole, a limiting protrusion is arranged at the through hole, the limiting protrusion is slidably connected in a limiting groove formed in the mandrel, and a tightening nut is further in threaded connection with an external thread arranged on the sleeve.

Description

Vent valve shutoff frock

Technical Field

The utility model relates to the field of overhaul of new energy vehicles, in particular to a vent valve plugging tool.

Background

With the continuous development of new energy vehicle industry in China, the market share of new energy vehicles is continuously improved, and the requirements on the maintenance and the like of the new energy vehicles are also greatly improved. The shell of the electric drive controller of the new energy vehicle needs to have certain sealing performance requirements, and certain potential safety hazards can exist if the sealing performance does not reach the standard. Therefore, the tightness of the electric drive controller needs to be checked during maintenance.

In the traditional air tightness detection process, the end of the ventilated pipeline needs to be tightly pressed at the ventilation valve hole to ensure that the sealing ring arranged at the end can play a sealing role, and in order to provide the pressure of the end pressing, a frame body needs to be designed and manufactured, the frame body is fixed on the opposite side structure of the shell of the electric drive controller, and then the pipeline is fixed on the frame body, so that the air tightness detection can be realized. The traditional detection mode is time-consuming and labor-consuming, the design and manufacture of the auxiliary frame body can lead to the prolongation of construction period and the improvement of cost, and in new energy vehicles with different models and specifications, the internal specific structures are different, so that the manufactured auxiliary frame body has small application range and poor applicability.

There is thus a need for a method or apparatus that solves the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides the vent valve plugging tool which is simple in structure, ingenious in design, capable of being independently connected without using an auxiliary bracket and high in universality.

The technical scheme of the utility model is as follows: the utility model provides a breather valve shutoff frock which characterized in that: the plugging tool comprises a sleeve 1, a mandrel 2 is movably connected in the sleeve 1, one end of the mandrel 2 is provided with a flat hook-shaped end head 3 positioned outside the sleeve 1, the other end of the mandrel 2 is rotationally connected with an eccentric driving block 5 through a rotating shaft 4, a handle 6 is arranged on the eccentric driving block 5, meanwhile, the rotating shaft 4 is connected at the eccentric position of the eccentric driving block 5,

a sealing groove is arranged on the end face of one end of the sleeve 1, which is close to the flat hook-shaped end head 3, a sealing ring 17 is arranged in the sealing groove, the other end of the sleeve 1 is in threaded connection with the adjusting sleeve 7, the eccentric driving block 5 is in contact with the end face of the adjusting sleeve 7, a through hole is arranged in the center of the adjusting sleeve 7, the mandrel 2 is movably connected in the through hole, a limiting bulge 8 is arranged at the through hole, the limiting bulge 8 is in sliding connection with a limiting groove 9 arranged on the mandrel 2, the external thread arranged on the sleeve 1 is also in threaded connection with a tightening nut 10,

annular grooves are respectively arranged at two ends of the mandrel 2, the annular grooves at two ends are respectively encircled with the inner wall of the sleeve 1 to form a ventilation cavity 11 and a spring cavity 12,

the sleeve 1 is connected with an air passage joint 13, the air passage joint 13 is communicated with the ventilation cavity 11, the outlet of the ventilation cavity 11 is positioned at one end of the sleeve 1 provided with a sealing ring 17, the outlet of the ventilation cavity 11 is positioned in the sealing ring 17,

the end face of the sleeve 1 in the adjusting sleeve 7 is fixedly connected with a gland 14, the center of the gland 14 is provided with a through hole for the mandrel 2 to pass through, the mandrel 2 is externally sleeved with a spring 15 in the spring cavity 12,

outside the spindle 2 a sealing ring set 16 is arranged between the venting chamber 11 and the spring chamber 12.

Compared with the prior art, the utility model has the following advantages:

the vent valve plugging tool in the structural form has the advantages that the structure is simple, the design is ingenious, the layout is reasonable, the special self-connecting structure is designed according to various problems caused by the need of additionally designing and manufacturing a bracket for fixing a gas circuit in the traditional air tightness detection process of the shell of the electric drive controller, the surface of the shell of the electric drive controller can be fixed only through a mandrel pulled by an eccentric driving block, the bracket or other auxiliary mechanisms are not required, the operation is simple and convenient, the occupied space is not required, and the application range of the vent valve plugging tool is greatly expanded compared with that of the traditional mode; meanwhile, the electric drive controller can be adjusted according to actual needs so as to be suitable for electric drive controller shells of different specifications, and the universality is high. The manufacturing process is simple, and the manufacturing cost is low, so that the novel plastic composite material has various advantages, is particularly suitable for popularization and application in the field, and has very broad market prospect.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present utility model.

Fig. 2 is a front view of an embodiment of the present utility model.

Fig. 3 is a cross-sectional view taken along A-A of fig. 1.

Sleeve 1, dabber 2, flat hook end 3, pivot 4, eccentric drive piece 5, handle 6, adjusting sleeve 7, spacing arch 8, in spacing groove 9, be equipped with tight nut 10, ventilation chamber 11, spring chamber 12, gas circuit joint 13, gland 14, spring 15, sealing washer group 16, sealing washer 17.

Detailed Description

The following description of the embodiments of the utility model refers to the accompanying drawings, in which: as shown in fig. 1, 2 and 3, the ventilation valve plugging tool comprises a sleeve 1, a mandrel 2 is movably connected in the sleeve 1, one end of the mandrel 2 is provided with a flat hook-shaped end head 3 positioned outside the sleeve 1, the other end of the mandrel 2 is rotatably connected with an eccentric driving block 5 through a rotating shaft 4, a handle 6 is arranged on the eccentric driving block 5, meanwhile, the rotating shaft 4 is connected at the eccentric position of the eccentric driving block 5,

The working process of the vent valve plugging tool provided by the embodiment of the utility model is as follows: when the air tightness of the inner cavity of the shell of the electric drive controller is required to be detected, firstly, the flat hook-shaped end head 3 at the end part of the mandrel 2 is inserted into the ventilation valve port 18 arranged on the shell of the electric drive controller, the section shape of the ventilation valve port 18 is in a horn shape and is matched with the shape of the flat hook-shaped end head 3, therefore, an operator needs to obliquely send the flat hook-shaped end head 3 into the ventilation valve port 18, after the flat hook-shaped end head 3 completely passes through the ventilation valve port 18, the angle of the flat hook-shaped end head 3 is aligned, the sleeve 1 and the surface of the shell of the electric drive controller are kept in a vertical state, then the sleeve 1 is pulled outwards, the flat hook-shaped end head 3 is clamped at the ventilation valve port 18,

when the handle 6 is pulled to drive the eccentric driving block 5 to rotate, and when the other side surface of the eccentric driving block 5 is in contact with the surface of the adjusting sleeve 7, the eccentric driving block 5 is eccentrically arranged, so that the eccentric driving block 5 pulls the mandrel 2 connected with the eccentric driving block to move outwards in the state, the flat hook-shaped end head 3 is tensioned in the ventilation valve port 18, the sleeve 1 is integrally tensioned on the surface of the shell of the electric driving controller by utilizing the force of the head-changing end head 3, at the moment, the tool is integrally fixed on the shell of the electric driving controller,

the detected gas path is connected to a gas path joint 13 of the device, and the gas entering the ventilation cavity 11 through the gas path joint 13 finally enters the inside of the shell of the electric drive controller through the outlet of the ventilation cavity 11 so as to carry out gas tightness detection; in the process, the sealing ring 17 can ensure the sealing between the connection part of the ventilation valve port 18 and the device;

in the electric drive controllers with different specifications, the depth of the ventilation valve ports 18 is different, in order to enable the tool to detect the air tightness of the electric drive controllers with various specifications, before detection, a worker can rotate the adjusting sleeve 7, and as the adjusting sleeve 7 is in threaded connection with the sleeve 1, the relative position relation between the adjusting sleeve 7 and the sleeve 1 can be changed by rotating the adjusting sleeve 7, namely the distance between an eccentric drive block 5 arranged at the end face of the adjusting sleeve 7 and the sleeve 1 is changed, and as one end of the mandrel 2 is connected with the eccentric drive block 5 through the rotating shaft 4, the mandrel 2 moves relative to the sleeve 1; after proper adjustment, stopping rotating the adjusting sleeve 7, and fixing the adjusting sleeve 7 by utilizing the backup nut 10;

in the non-use state, the spring 15 located in the spring chamber 12 exerts a force on the spindle 2 away from the eccentric drive block 5, so that the eccentric drive block 5 can always be pressed against the end face of the adjustment sleeve 7.

Claims

1. The utility model provides a breather valve shutoff frock which characterized in that: the plugging tool comprises a sleeve (1), a mandrel (2) is movably connected in the sleeve (1), one end of the mandrel (2) is provided with a flat hook-shaped end head (3) positioned outside the sleeve (1), the other end of the mandrel (2) is rotationally connected with an eccentric driving block (5) through a rotating shaft (4), a handle (6) is arranged on the eccentric driving block (5), meanwhile, the rotating shaft (4) is connected at the eccentric position of the eccentric driving block (5),

the end face of one end, close to the flat hook-shaped end head (3), of the sleeve (1) is provided with a sealing groove, a sealing ring (17) is arranged in the sealing groove, the other end of the sleeve (1) is in threaded connection with the end face of the adjusting sleeve (7), the eccentric driving block (5) is in contact with the end face of the adjusting sleeve (7), a through hole is formed in the center of the adjusting sleeve (7), the mandrel (2) is movably connected in the through hole, a limiting bulge (8) is arranged at the through hole, the limiting bulge (8) is slidably connected in a limiting groove (9) formed in the mandrel (2), an external thread arranged on the sleeve (1) is further in threaded connection with a tightening nut (10),

annular grooves are respectively arranged at two ends of the mandrel (2), the annular grooves at two ends are respectively encircled with the inner wall of the sleeve (1) to form a ventilation cavity (11) and a spring cavity (12),

the sleeve (1) is connected with an air passage joint (13), the air passage joint (13) is communicated with the ventilation cavity (11), the outlet of the ventilation cavity (11) is positioned at one end of the sleeve (1) provided with a sealing ring (17), the outlet of the ventilation cavity (11) is positioned in the sealing ring (17),

the end face of the sleeve (1) positioned in the adjusting sleeve (7) is fixedly connected with a gland (14), the center of the gland (14) is provided with a through hole for the mandrel (2) to pass through, the mandrel (2) is sleeved with a spring (15) positioned in the spring cavity (12),

a sealing ring group (16) positioned between the ventilation cavity (11) and the spring cavity (12) is also arranged outside the mandrel (2).